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#ifndef QVIS_PLUGIN_WINDOW_H
#define QVIS_PLUGIN_WINDOW_H
#include <gui_exports.h>
#include <QvisPostableWindowSimpleObserver.h>
#include <vector>
#include <string>

// Forward declarations.
class PluginManagerAttributes;
class FileOpenOptions;
class QButtonGroup;
class QCheckBox;
class QComboBox;
class QGroupBox;
class QLabel;
class QTabWidget;
class QVBox;
class QTreeWidget;
class QTreeWidgetItem;
class QCheckListItem;
class QPushButton;
class QListWidget;
class QListWidgetItem;
class QTreeView;
class QvisPluginManagerAttributesDataModel;

// ****************************************************************************
// Class: QvisPluginWindow
//
// Purpose:
//   This window displays and manipulates the available plugins.
//
// Programmer: Jeremy Meredith
// Creation:   August 31, 2001
//
// Modifications:
//    Jeremy Meredith, Fri Sep 28 13:52:35 PDT 2001
//    Removed default settings capabilities.
//    Added a pluginSettingsChanged signal.
//    Added ability to keep track of which items are checked/unchecked.
//
//    Jeremy Meredith, Wed Jan 23 16:49:01 EST 2008
//    Populate database tab.  Also observe FileOpenOptions.
//
//    Dave Pugmire, Wed Feb 13 15:43:24 EST 2008
//    Update the FileOpenOptions for enable/disable DB plugins.
//
//    Brad Whitlock, Wed Apr  9 11:03:33 PDT 2008
//    QString for caption, shortName.
//
//    Cyrus Harrison, Tue Jun 24 11:15:28 PDT 2008
//    Initial Qt4 Port.
//
//    Jeremy Meredith, Wed Dec 30 16:44:25 EST 2009
//    Added ability to set preferred file format plugins.
//
//    Brad Whitlock, Tue Feb  9 13:37:47 PST 2010
//    I changed the window so it uses a data model to view the plugin manager
//    attributes. This enables more direct editing of the categories.
//
// ****************************************************************************

class GUI_API QvisPluginWindow : public QvisPostableWindowSimpleObserver
{
    Q_OBJECT
public:
    QvisPluginWindow(const QString &caption = QString::null,
                     const QString &shortName = QString::null,
                     QvisNotepadArea *notepad = 0);
    virtual ~QvisPluginWindow();
    virtual void CreateWindowContents();

    virtual void CreateNode(DataNode *);
    virtual void SetFromNode(DataNode *, const int *borders);
    virtual void Update(Subject *TheChangedSubject);

    virtual void ConnectSubjects(PluginManagerAttributes *p,
                                 FileOpenOptions *f);
    virtual void SubjectRemoved(Subject*);
                     
signals:
    void pluginSettingsChanged();
protected:
    virtual void UpdateWindow(bool doAll);
    void Apply(bool dontIgnore = false);
    int getCurrentlySelectedDBIndex();
    int getCurrentlySelectedPreferredIndex();
    bool preferredOptionsContainsID(const std::string&);
    void UpdateWidgetSensitivites();
private slots:
    virtual void apply();
    void tabSelected(int);
    void clearOperatorCategories();
    void databaseOptionsSetButtonClicked();
    void databaseSelectedItemChanged(QTreeWidgetItem*,QTreeWidgetItem*);
    void selectAllReadersButtonClicked();
    void unSelectAllReadersButtonClicked();
    void dbAddToPreferedButtonClicked();
    void dbPreferredUpButtonClicked();
    void dbPreferredDownButtonClicked();
    void dbPreferredRemoveButtonClicked();
    void dbPreferredListItemChanged(QListWidgetItem*,QListWidgetItem*);
private:
    PluginManagerAttributes *pluginAtts;
    FileOpenOptions         *fileOpenOptions;

    QTabWidget      *tabs;

    QWidget                              *pagePlots;
    QvisPluginManagerAttributesDataModel *plotDataModel;
    QTreeView                            *plotView;

    QWidget                              *pageOperators;
    QvisPluginManagerAttributesDataModel *operatorDataModel;
    QTreeView                            *operatorView;
    QPushButton                          *clearOperatorCategoryButton;

    QWidget         *pageDatabases;
    QTreeWidget     *listDatabases;
    QPushButton     *selectAllReadersButton;
    QPushButton     *unSelectAllReadersButton;
    QPushButton     *databaseOptionsSetButton;
    QPushButton     *dbAddToPreferedButton;
    QListWidget     *listPreferredDBs;
    QPushButton     *dbPreferredUpButton;
    QPushButton     *dbPreferredDownButton;
    QPushButton     *dbPreferredRemoveButton;

    intVector                      enabledPlugins;
    std::vector<QTreeWidgetItem*>  databaseItems;
    std::vector<int>               databaseIndexes;

    int             activeTab;
    bool            pluginsInitialized;
};

#endif